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https://github.com/aria2/aria2.git
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108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2006 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "PiecedSegment.h"
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#include "Piece.h"
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#include <cassert>
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namespace aria2 {
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PiecedSegment::PiecedSegment(int32_t pieceLength,
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const std::shared_ptr<Piece>& piece)
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: piece_(piece), pieceLength_(pieceLength)
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{
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size_t index;
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bool t = piece_->getFirstMissingBlockIndexWithoutLock(index);
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assert(t);
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writtenLength_ = index * piece_->getBlockLength();
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}
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PiecedSegment::~PiecedSegment() = default;
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bool PiecedSegment::complete() const { return piece_->pieceComplete(); }
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size_t PiecedSegment::getIndex() const { return piece_->getIndex(); }
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int64_t PiecedSegment::getPosition() const
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{
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return ((int64_t)piece_->getIndex()) * pieceLength_;
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}
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int64_t PiecedSegment::getPositionToWrite() const
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{
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return getPosition() + writtenLength_;
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}
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int64_t PiecedSegment::getLength() const { return piece_->getLength(); }
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void PiecedSegment::updateWrittenLength(int64_t bytes)
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{
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auto newWrittenLength = writtenLength_ + bytes;
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assert(newWrittenLength <= piece_->getLength());
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for (auto i = writtenLength_ / piece_->getBlockLength(),
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end = newWrittenLength / piece_->getBlockLength();
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i < end; ++i) {
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piece_->completeBlock(i);
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}
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if (newWrittenLength == piece_->getLength()) {
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piece_->completeBlock(piece_->countBlock() - 1);
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}
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writtenLength_ = newWrittenLength;
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}
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bool PiecedSegment::updateHash(int64_t begin, const unsigned char* data,
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size_t dataLength)
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{
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return piece_->updateHash(begin, data, dataLength);
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}
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bool PiecedSegment::isHashCalculated() const
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{
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return piece_->isHashCalculated();
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}
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std::string PiecedSegment::getDigest() { return piece_->getDigest(); }
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void PiecedSegment::clear(WrDiskCache* diskCache)
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{
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writtenLength_ = 0;
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piece_->clearAllBlock(diskCache);
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piece_->destroyHashContext();
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}
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std::shared_ptr<Piece> PiecedSegment::getPiece() const { return piece_; }
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} // namespace aria2
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